If fori C-O2 - CO2 ii C-1-2O2- CO iii CO-1-2O2- CO2The heat of reaction are Q- - 12 and - 10 kJ-mol respectively- Then Q -

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Hess' Law

If fori C+O2 ...

Question

If for
(i) $C + O_{2} \to C O_{2}$ (ii) $C + \frac{1}{2} O_{2} \to C O$ (iii) $C O + \frac{1}{2} O_{2} \to C O_{2}$
The heat of reaction are Q, – 12 and – 10 $k J / m o l$ respectively. Then Q =

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Solution

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Similar questions

C + O_{2} \to C O_{2}

C + \frac{1}{2} O_{2} \to C O

C O + \frac{1}{2} O_{2} \to C O_{2}

k J / m o l

C + O_{2} \to C O_{2}

C + \frac{1}{2} O_{2} \to C O

C O + \frac{1}{2} O_{2} \to C O_{2}

k J / m o l

C

+ \frac{1}{2} O_{2} \to C O; Δ H = - 110.5

C O + \frac{1}{2} O_{2} \to C O_{2}; Δ H = - 283.2

C (graphite) + O_{2} \to C O_{2}

C (g r a p h i t e) + \frac{1}{2} O_{2} \to C O Δ H_{1} = - 110.5 k J / m o l

C O + \frac{1}{2} O_{2} \to C O_{2} Δ H = - 283.2 k J / m o l

k J / m o l

C (g r a p h i t e) + O_{2} \to C O_{2} Δ H = ?

From the thermochemical reactions,

C + 1/2O₂ → CO; ∆H = -110.5 kJ

CO + 1/2O₂→ CO₂; ∆H = -283.2 kJ

The heat of reaction C + O₂ → CO₂ is:

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